Bookbinding package and method



June 14, 1966 T. GROOM IV 3,256,029

BOOKBINDING PACKAGE 'AND METHOD Filed July 51, 1963 United States Patent3,256,029 BOOKBINDING PACKAGE AND METHOD Thomas Groom IV, 8 Exeter Road,Beverly, Mass.

Filed July 31, 1963, Ser. No. 299,032 Claims. (Cl. 28121) This inventionrelates to bookbinding, and provides means and method for binding sheetmaterial into book form with great ease, simplicity, and lack ofexpense.

A main object of the invention is to provide a package which may be usedto bind one book quickly and easily, without need of complicated orother machinery, and without requiring that excess materials be made upand wasted if not used. Additional packages may be used to bindadditional books, as desired.

The invention features a liquid-tight envelope enclosing a piece ofpervious material such as fabric, impregnated with liquid adhesivematerial. In preferred embodiments, the envelope is quite flat, and thefabric extending through it is temporarily secured to the envelope atspaced spots to prevent bunching therein.

Other objects, advantages, and features will appear from the followingdescription of preferred embodiments, taken together with the attacheddrawings, in which:

FIG. 1 is a view in perspective, partially broken away 3,256,029Patented June 14, 1966 "ice exact cutting lines being determined by theheight of the book to be bound; i.e., by the length of the sheets orfolds of the stack being bound. In preferred embodiments there will beincluded, as along the area 16 as shown, a scale graduated in inches tofacilitate cutting off to the desired length. The side edge portion 16is and showing how one end is cut away in practicing my 1 new method; 1

FIG. 2 is a sectional view taken at 2-2 of FIG. 1; FIG. 3 is aperspective view showing my preferred package after it has been cut toproper length and cut along its sealed side edge;

FIG. 4 is a perspective view showing a number of thicknesses of paper ina stack with its side edge in contact with the glue-carrying fabric ofthe package;

FIG. 5 is a similar partial view showing how the fabric and liquid-tightlayers are folded over on the outside of the stack;

FIG. 6 is a similar view showing the book thus formed standing on itsend, and with the liquid-tight layer removed;

FIG. 7 is a partial, perspective view of a modification in which aperforated plastic layer is interposed between fabric and outerliquid-tight layer; and

FIG. 8 is a partial, perspective view showing the invention as embodiedin a book made up by binding an unburst continuous fanfold paper sheet.

Referring now to the drawings in greater detail, there is shown in FIG.1 a bookbinding package indicated generally at 10. The package comprisesan envelope 12 formed by folding a polyethylene-foil laminate material(shown without indicating the lamination) on itself on fold line F, thepolyethylene layer inside, and heat sealing the envelope along the endedge portions 14 and side edge portion 16. Prior to folding, a piece ofopen-weave gauze or fabric 18 is secured to the polyethylene side of theenvelope material at spaced small areas 20, preferably by heat-sealing.Before the envelope is completely sealed, adhesive 22 is placed withinit in amount sufiicient to wet the fabric and permit the latter to wetthe edges of paper contacting it in use as will be seen. The presentlypreferred adhesive is a polyvinyl acetate Water emulsion type adhesivewith solids content of about 40%, and viscosity of about 3750centipoises at 78 F., sold by the Cudahy Packing Company under the nameResoflex PB Grade.

The fabric 18 cooperates with the adhesive to promote even distrbutionthereof through the envelope and the fabric, which is held againstcreeping or bunching by thet spot adhesion to the liquid-tight outermaterial 12.

In use, the envelope is cut inside each strip 14, the

then cut off, as along line 24, and the package opened out to theposition shown generally in FIG. 3 (though with the fourth corner of thefabric against the liquidtight sheet, as are three in this figure), thisstep taking place with the outer surface of the liquid-tight sheet beingbrought down on a horizontal surface, as it is shown in FIG. 4, so thatany adhesive not actually soaked up by the fabric, nevertheless does notescape. The stack of 'sheets 26 and covers 28 (if desired) are thenbrought down on the wet fabric, as shown in FIG. 4. The indicia 29 ofcenterline and equal distance on each side thereof facilitate centralpositioning of the stack. The liquidtight sheet 12 not only protects thehorizontal surface during this stage, but permits jogging of the sheetsagainst the fabric by bringing the entire assembly down forcefully onthe horizontal surface as many times as desired. The liquid-tight sheet12 is then folded up against covers 28, as shown in FIG. 5, itsliquid-tight nature permitting this to be done without soiling thehands. Finally, the liquid-tight sheet 12 is removed, leaving the fabric18 exposed for drying. The result is a simply but solidly bound volume,particularly desirable as in preparing records for permanent retention.

If a more attractive and even more durable binding is desired, aperforated plastic sheet may be interposed between the liquid-tightsheet 112 and fabric sheet 118,

as shown in FIG. 7. The sheets 112 and 140 may be i Other embodimentswithin the invention and claims will I occur to those skilled in theart.

I claim:

1. A bookbinding package comprising a liquid-tight envelope, a fabricbinder disposed in said envelope, a perforated sheet of non-perviousmaterial interposed between said fabric binder and said envelope, andliquid adhesive disposed in said envelope and through said binder, saidbinder being of area sufficient to cover the spine of a book and overliethe front and back portions of said book and said envelope including atleast one liquid-tight sheet of area sufiicient to cover said spine andoverlie said front and back portions.

2. The package of claim 1 in which said fabric is adhered at spacedplaces to said liquid-tight sheet.

3. The package of claim 2 in which said liquid-tigh sheet and saidfabric binder are centrally folded, said envelope being formed bysealing together the two halves of said liquid-tight sheet around thethree edges thereof other than the edge defined by the central fold.

4. The method of bookbinding which includes the steps of cutting througha liquid-tight envelope containing a pervious sheet and liquid adhesive,placing an edge of a multiplicity of leaves assembled in stack relationagainst said porous sheet, adhering transverse outer portions of saidporous sheet against the two opposed outermost leaves of the stackthereof by pressing said envelope over said porous sheet at saidtransverse outer portions, removing said envelope from said poroussheet, and drying said pervious sheet.

5. The method of bookbinding which includes the steps of opening aliquid-tight envelope containing a pervious sheet and liquid adhesive,placing an edge of a multiplicity of leaves assembled in stack relationagainst said porous sheet, adhering transverse outer portions of saidporous sheet'against the two opposed outermost leaves of the stackthereof by pressing said envelope over said porous sheet at saidtransverse outer portions, removing said envelope from said poroussheet, and drying said pervious sheet.

References Cited by the Examiner UNITED STATES PATENTS Wishart.

Millar.

Van Boytham 20646 Lappala 20647 Adell 20656 Pitman 206-63.2

10 THERON E. CONDON, Primary Examiner.

GEORGE E. LOWRANCE, Examiner.

M. L. 'RICE, Assistant Examiner.

5. THE METHOD OF BOOKBINDING WHICH INCLUDES THE STEPS OF OPENING ALIQUID-TIGHT ENVELOPE CONTAINING A PERVIOUS SHEET AND LIQUID ADHESIVE,PLACING AN EDGE OF A MULTIPLICITY OF LEAVES ASSEMBLED IN STACK RELATIONAGAINST SAID POROUS SHEET, ADHERING TRANSVERSE OUTER PORTIONS OF SAIDPOROUS SHEET AGAINST THE TWO OPPOSED OUTERMOST LEAVES OF THE STACKTHEREOF BY PRESSING SAID ENVELOPE OVER SAID POROUS